Circular Connectors

Image Part Number Description / PDF Quantity Rfq
KJA6T21W35SN

KJA6T21W35SN

VEAM

CONN PLUG FMALE 79POS GOLD CRIMP

25

PLC1G121002

PLC1G121002

VEAM

CIRCULAR

0

PLC1G523E14

PLC1G523E14

VEAM

CIRCULAR

0

PLC1G821H10

PLC1G821H10

VEAM

CIRCULAR

0

PLC1G222H14

PLC1G222H14

VEAM

CIRCULAR

0

PLC1G422E04

PLC1G422E04

VEAM

CIRCULAR

0

PLC1G523H06

PLC1G523H06

VEAM

CIRCULAR

0

PLC1G522E14

PLC1G522E14

VEAM

CIRCULAR

0

MKJ3B7F6-4SN

MKJ3B7F6-4SN

VEAM

CONN RCPT FMALE 4POS GOLD CRIMP

0

CA06COME28-11SBF80

CA06COME28-11SBF80

VEAM

CONN PLUG FMALE 22P SILVER CRIMP

0

XLR611C

XLR611C

VEAM

CONN PLUG FMALE XLR 6P SOLDER

23

PLB1G020008

PLB1G020008

VEAM

CONN RCPT FMALE 8POS SOLDER CUP

5

PLC1G521E02

PLC1G521E02

VEAM

CIRCULAR

0

PLC1G123A10

PLC1G123A10

VEAM

CIRCULAR

0

PLC1G823E03

PLC1G823E03

VEAM

CIRCULAR

0

PLC1G223A07

PLC1G223A07

VEAM

CIRCULAR

0

CA08COME22-22SB

CA08COME22-22SB

VEAM

CONN PLUG FMALE 4P SILV SLDR CUP

0

CA02COME28-22SB01

CA02COME28-22SB01

VEAM

CONN RCPT FMALE 6P SILVER CRIMP

0

PLB3G520007

PLB3G520007

VEAM

CONN RCPT FMALE 7POS GOLD SOLDER

3

PLA1G423010

PLA1G423010

VEAM

CONN PLUG MALE 10POS SOLDER CUP

0

Circular Connectors

1. Overview

Circular connectors are multi-pin electrical connectors with circular contact arrangements, designed for reliable signal/power transmission in harsh environments. They feature robust mechanical structures, environmental sealing, and high mating durability. These connectors are critical in aerospace, industrial automation, and medical equipment where vibration resistance and signal integrity are paramount.

2. Main Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
MIL-DTL-38999High-density, threaded coupling, EMI shieldingAerospace systems, military vehicles
USB Type-CReversible design, 10Gbps data rate, 100W power deliverySmartphones, laptops, PDAs
BNCBayonet locking, 2GHz frequency rangeTest equipment, video systems
LVDT CircularLinear variable differential transformer integrationIndustrial sensors, robotics

3. Structure & Components

Typical construction includes: - Shell: Aluminum alloy/zinc die-cast housing with corrosion-resistant plating - Contacts: Gold-plated phosphor bronze with 0.5-2.0mm diameter - Insulation: High-temperature thermoplastic (200 C rating) - Sealing: IP67/IP68 rated elastomer gaskets - Mounting: Threaded/flange/clamp mechanisms

4. Key Technical Parameters

ParameterTypical RangeImportance
Voltage Rating50V-600VDetermines power transmission capacity
Current Rating1A-25A/contactAffects thermal performance
Contact Resistance 5m Impacts signal integrity
IP RatingIP40-IP68Defines environmental protection level
Operating Temp-65 C to +200 CMaterial stability indicator
Mating Cycles500-10,000Service life predictor

5. Application Fields

  • Aerospace: Flight control systems, satellite antennas
  • Industrial: CNC machines, automated guided vehicles
  • Medical: MRI scanners, patient monitoring systems
  • Telecom: 5G base stations, fiber optic networks
  • Consumer: VR headsets, gaming peripherals

6. Leading Manufacturers

ManufacturerKey ProductsSpecial Features
AmphenolMIL-DTL-38999 seriesComposite materials, EMI filtering
TE ConnectivityDEUTSCH D38999Thermoplastic housing, 2000V dielectric
MolexUSB Type-C 10GbpsShielded twinax design
DelphiAutomotive circular connectorsIP69K rating for EV charging
LemoPush-pull circular seriesSubminiature, 5000+ mating cycles

7. Selection Guidelines

Key considerations: 1. Environmental factors: Temperature extremes, fluid exposure 2. Electrical requirements: Signal type (analog/digital), current load 3. Mechanical constraints: Panel space, mating force limitations 4. Compliance standards: MIL-STD, ISO 6722, RoHS 5. Cost vs. longevity: High-cycle applications justify premium connectors

8. Industry Trends

Emerging developments include: - Miniaturization: 1.0mm contact pitch enabling wearable devices - High-speed transmission: 25Gbps+ differential pairs for industrial IoT - Smart connectors: Integrated sensors for condition monitoring - Material innovation: Graphene-coated contacts reducing resistance - Eco-design: Halogen-free thermoplastics meeting REACH regulations

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